Star Trek: First Contact (1996)
One of the finer Trek movies may primarily be about the endless horror that is the Borg—and Jean-Luc Picard’s traumatic relationship with them—but it’s also a great Star Trek time travel premise. What if the Borg, sick of being repelled by Starfleet in the present, just went back in time and stopped humanity from ever ascending to spaceflight in the first place?
